ZetaSQL
A reusable analyzer framework for the GoogleSQL language, providing parsing, type checking, and semantic analysis for SQL engines.
What is ZetaSQL?
GoogleSQL is an open-source analyzer framework for the GoogleSQL language, providing parsing, semantic analysis, and type checking as a reusable component. It solves the problem of inconsistent SQL behavior across different database engines by offering a standardized language definition and analysis toolkit that engines can embed. This ensures that SQL queries are interpreted consistently in terms of name resolution, type coercion, and function semantics.
Database engine developers and teams building SQL-based query systems who need to implement robust, consistent SQL language support without reinventing the wheel. It is also useful for tooling developers creating SQL analysis, linting, or optimization tools.
Developers choose GoogleSQL because it provides a battle-tested, production-ready SQL analyzer used by major Google systems like BigQuery and Spanner, ensuring high-quality language compliance. Its modular design allows engines to adopt subsets of features while maintaining consistency, and it includes a compliance test suite to validate implementations.
Overview
GoogleSQL(formerly ZetaSQL) - Analyzer Framework for SQL
Use Cases
Best For
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